But after a stroke she woke up with a jamaican accent, doctors said she has a rare case of foreign accent syndrome. :surprised

In 1999 an american woman Tiffany Roberts was left with a mix of cockney and west country burr after a stroke.

Here is a link http://www.neuroanatomy.wisc.edu/selflearn/Britishaccent.htm" [Broken].

A quote:

"Mrs Roberts discovered she had a British accent after recovering her voice following a stroke in 1999.

"When people first started asking me where in England I was from and a family member asked why am I talking that way, that is when I became very conscious that a part of me had died during the stroke," she said.
A part of me had died during the stroke

Four years on, she still struggles to convince people that she is a born and bred American.

"People in America accuse me of lying when I say I was born in Indiana.

"They would say 'What are you saying that for? Where in England are you from?'

There is a simple explanation for all this. Her speech was impared and people thought she spoke with a foreign acccent.

Also the article states:

Her accent is a mixture of English cockney and West Country.

Which is of course complete baloney, I do not believe a word about it.
It may sound a bit like it but this is "National Enquirer" level of reporting.
And that from the BBC News.

You can giggle all you want, but I've heard of this syndrome before, going back at least a couple of decades. There's even been speculation that such was the basis for the old Jesus-freak types claiming that people spoke 'in tongues'. Supposedly, it's a weird form of Wernicke's aphasia. I'm afraid that I have no idea where to find the references. Given my educational background, it was probably in SciAm.

Staff: Mentor

MeJennifer is correct, they aren't actually speaking with any certain accent, their speech is affected and people "thinks it sounds like" such and such. After my dad's stroke he sounded like Mickey Mouse. It was horrible.

We've discussed this in another thread. People aren't actually suddenly knowing and speaking in other accents, it's just what is perceived by the listener.

In contrast to Broca's aphasia, damage to the temporal lobe may result in a fluent aphasia that is called Wernicke's aphasia. Individuals with Wernicke's aphasia may speak in long sentences that have no meaning, add unnecessary words, and even create new "words." For example, someone with Wernicke's aphasia may say, "You know that smoodle pinkered and that I want to get him round and take care of him like you want before," meaning "The dog needs to go out so I will take him for a walk." Individuals with Wernicke's aphasia usually have great difficulty understanding speech and are therefore often unaware of their mistakes. These individuals usually have no body weakness because their brain injury is not near the parts of the brain that control movement.

"You know that smoodle pinkered and that I want to get him round and take care of him like you want before"
Okay, to me that sounds incredibly British-slangy. If Wol wrote that I wouldn't bat an eye.

I am Jeremiah Dixon, I am a Geordie boy..
Does it have to do with a King George?

There are other unique references in there too such as:

This Baker's Boy From The West Country and
A World Away From The Coaly Tyne

though I have no idea what he is referencing..

I be a geordie! Geordie is a term for people born in newcastle and comes from the George Stephenson mining safety lamp which was used extensively by people from Newcastle who were mainly coal miners in the 18th century.

The original derivation of the term on the wiki page being related to King George is not a widely held view here in Newcastle. Anyway Geordie's are distinguishable by their dialect and I found an amusing page to convert english to geordie.